My notebook worked perfectly until half a month ago.After I plaied Total Annihilation online , I found , the tanks and cursor moved like jumping, the machine slow down.When I pressed Ctrl+Alt+Del , the system process occupy CPU about 100% . The other phenomenon is the slowing of files transform in local net. As if the problem correlating with the use of net. Could someone give me some advice?

how many processes are running at startup, what are the cpu utilization numbers?

Hi. I think you will find that one of your programs in the task bar has a glitch and is using the Cpu. Occasionally for some reason a program will do this. I have a program called Cookie Pal that will do this. Hope this helps. Have a nice day. May the force be with you.

Thank Dirty_Sanchez and Oldhobo first. But there is noting else except internat.exe ,Kavpersonal50,NeroCheck and Synchronization Manager in my startup.The crawl occured even in the safe mode.Maybe something else leads this trouble.

check services in comp managment and see if there is a service running that you arent aware of as you may have one that will not show as a process

Hi , Dirty_Sanchez The running service in my laptop list following.Could you find any clue? COM+ Event System Network Connections Remote Access Connection Manager Telephony Windows Management Instrumentation Driver Extensions Computer Browser DHCP Client Distributed Link Tracking Client DNS Client Event Log IPSEC Policy Agent kavsvc Logical Disk Manager Plug and Play Print Spooler Protected Storage Remote Procedure Call (RPC) Remote Registry Service Removable Storage RunAs Service Security Accounts Manager Server System Event Notification Task Scheduler TCP/IP NetBIOS Helper Service Windows Management Instrumentation Workstation

those look pretty standard. boot to safe and see if it still happens.